660MW超超临界机组低负荷下凝结水系统控制优化Optimization Control of Condensate Water System of 660 MW Ultra-supercritical Unit under Low Load
郑冬浩,曹志华,董勇卫,钱锋,沈正华
ZHENG Donghao,CAO Zhihua,DONG Yongwei,QIAN Feng,SHEN Zhenghua
摘要(Abstract)：
某发电厂660 MW超超临界机组的凝结水控制系统在高负荷时调节品质优良、经济性良好,但是在低负荷及高低负荷切换时,出现了除氧器水位和凝结水泵出口压力参数波动、凝结水泵经济性下降等问题。通过对控制策略的分析和优化,提高了凝结水控制系统在低负荷时的稳定性和经济性。
The condensate water system of a 660 MW ultra-supercritical unit in a power plant was of good quality and economy under high load. However, during switching from low load to high load, parameters of deaerator water level and outlet pressure of condensate water pump fluctuated, and economy of condensate water pump decreased. After control strategy analysis and optimization, stability and economy of condensate water system under low load are enhanced.
关键词(KeyWords)：
低负荷;凝结水;控制系统;优化
low load;condensate water;control system;optimization
基金项目(Foundation):
作者(Author):
郑冬浩,曹志华,董勇卫,钱锋,沈正华
ZHENG Donghao,CAO Zhihua,DONG Yongwei,QIAN Feng,SHEN Zhenghua
DOI: 10.19585/j.zjdl.201707005
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